Pipe connection.



B. D. OOPPAGE.

PIPE CONNECTION.

APPLICATION FILED JULY 6, 1907.

Patented Feb. 23, 1909.

WITNESSES ATTORNEY.

UNITED STATES PATENT OFFICE.

BENJAMIN D. COPPAGE,

PANY, OF EDGEMOOR, DELAWARE, A CORPORATION OF DELAWARE.

PIPE CONNECTION. 1

Specification of Letters Patent.

Patented Feb. 23, 1909.

Application-filed July 6, 1907. Serial No. 882,452.

To all whom it may concern:

a citizen of the United States of America, l residing in Wilmington, in the county of l Newcastle and State of Delaware, have may be used.

invented a certain new and useful Im rovement in Pipe Connections, of which the following is a true and exact description, refer ones being had to the accompanying drawings, which form a part thereof.

\ My present invention relates to means for connecting pipes in metallic walls, and articularly to the means for connecting ipes into the walls of metallic reservoirs, eating tanks and boilers, and the like.

The object of the invention is to rovide a connection which can be readily an chea ly formed without the use of special or ela 0- rate tools and in which standard fitting parts In carrying out my invention, I employ an attachment or fitting, comprising a cylindrical body portion or bushing. passing H bored or drilled in the through a passage wall to which the connection is to be made and provided with a head bearing against one side of the wall usuall the outer side, and having'a collar secure on the opposite end of the body portion to bear against the other side of the wall.

Preferably I thread the collar internally and externally thread the corresponding portion of the body portion of the fitting,

ut any means for securing place may a ready and positive connection of the parts. The portion of the head adjacent the wall I make of malleable material and a tight joint is made and the bushing firmly secured in place by calking or fullering this portion of the head, the calking operation being of. a character which may be readily carried out by hand tools. The fitting is provided with the usual threads for the pipe or pipes to be connected to it.

The necessary malleability of the head Bortion adjacent the wall may be provided y making the portion of the head in the form of a washer of malleable material surrounding the body of the head, and supported by. a flange or head portion integral with the body, or the entire head may be formed b a malleable nut'or collar. similar to the col ar first described; preferably, however, the head and body 0 the fitting are the collar in be employed which will-permit of formed of an integral malleable piece of metal.

For a tion, reference may be had to the accompanying drawings of which-- Fimire 1 is a plan view of a portion of the wall aving my attachment fitting secured to it. Fig. 2 is a sectional elevation on the line 2-2 of Fig. 1. Fig. '3 is a view similar 5 to Fig. 2, showing a slightly modified form. Fig. 4 is a view similar to ig. 2, showing a third form differing slightly from that of Figs. 2 and 3. Fig. 5 is a view similar to i Fig. 2, showing a construction in which the a washer of malleable material. Fig. 6 is a view similar to Fig. 2 showing a construction in which the head of the fitting is formed by a collar or nut, and Fig. 7 is a view similar to Fig. 2, showing a construction in which the collar is formed by the end of the elbow fitting.

Referring first to the construction shown in Fig. 1 of the drawings, A represents the metallic wall of a boiler, heating tank, reservoir or the like, having formed in it a passage A. The attachment fitting comprises a hollow body portion Bpassing through the outer side of t e wall, and a nut or collar 0 bearing against the other side of the wall and provided with threads C which mesh with the threads B formed on the corresponding portion of the fitting. Pi e connection threads B are formed internal y in the fitting at its head end, which is usually the outer end. In assembling, the o ening A is first bored or drilled and the co ar and head engaging portions A of the wall faced 01f when necessary to make these surfaces smooth and normalto the opening A. The part B is then inserted and the collar C screwed up tightly. The next and final step in securing the attachment fitting in lace consists in calking the portion of the ead adjacent the wall as indicated at B to make a tight oint between the fitting and the wall, and to firmly secure the fitting in position. In practice I have found that the fullering or calking ofthe head ortion against the wall; results in sufficient riction between the parts to permanently secure the fitting in thereafter practically implace, so that it is possible to unscrew the parts and so that better understanding ofmy inven-' "malleable portion of the head is formed by walland fitting snugly 1n the passage A, an. integral head 'ortionB bearing against the they will not be" disturbedby the force employed in screwing or unscrewing the pipe inor out of the thread B The advantage of such a secure-connection is, of course, ob-

vious, and it is no real drawback that the parts after being once tightened cannot be disassembled by unscrewing the collar 0, especially as the fitting can be cut away if necessary to permit the insertion of a new fitting when the original one is defective,

without weakening or otherwise injuring the wall to which it is secured.

The construction of Fig. 3 differs from I that of Fig. 2 merely in that the inner end of the fitting is threaded at B so that the pipes may be attached to the fitting at each side of the wall. 7

In Fig. 4, the threads B are extended :through the entire body of the fitting, so that the pipe connected to the fitting may extend clear thropgh it.

The construction of Fig. 5 differs from that of Fig. 2 in that a collar or washer D surrounds the body of the heading between the head B and the adjacent face of the wall A,

in position by calking the washer D as indi:

cated at D.

In Fig. 6, the head 13 of the fitting is not integrally connected to the body of the fitting, but is screwed on, the threads B being extended for the purpose. In the form of my invention shown in this figure, the body of the bushing is smaller than the passage A and the collar C and head B are provided with shoulders C. and B which extend into the ends of the passage A. In this form also, the pipe connection to the fitting is made by means of threads B formed externally on the bushing body.

The construction of Fi 7 differs from that of Fig. 2 in that the co lar C of the latter figure is replaced by the end of the elbow fitting E, which is rovided with threads E meshing with the t eads B I With all the forms of my invention disclosed it will be observed that the only work done on the wall A consists in boring or drilling the passage A and facing off the surfaces A when necessary. The fitting parts proper may be standard parts taken from stock, made by automatic or semi-automatic machinery and of standard dimensions, accurately and uniformly threaded. After the hole A is formed, and the surfaces A faced off, all that needs to be done to permanently secure the fittings in place is, to insert the fitting body, secure the collar in place and then calk the head portion adjacent the wall. The 'calking operation is such that it may easil be carried out by means of a simple calking blade and hand hammer, and in such a manner as not to injure the thread bywhich the pipe connection is secured to the fitting; The construction is much more secure and reliable than is obtained by threading the ipe to be connected into a threaded opening ibrmed in the wall and as is well known, it is exceedingly difiicult and usually practically impossib e to form really satisfactory threads in a thin boiler wall or the like, even when the wall is reinforced with a riveted pad. Especially is this so when the openings are threaded outside of a construction sho as is frequently necessary with such connections. Having now described my invention, what I claim as new and desire tosecure by Letters I Patent, is, 1. An attachment fittmg for connecting a pipe into a metallic wall, said wall having a passage through it, comprising a hollow mem er having a thread for a pipe connection having a body portion extending through said passage and a head secured to said bod portion and bearing against one side of said wall, the portion of said head immediately adjacent the wall bein of malleable material to permit it to be calke and a collar attached.

to the body portion and bearing snugly against the other side of said wall prior to any calking operation, whereby when the malleable ortion of said head is calked, a tight joint between the fitting and the wall is made and the parts are rigidly secured together without injuring said thread.

2. An attachment fi ting for connecting a pipe into a metallic wall, said wall having a passage throu h it, comprising a hollow member of malleable metal having a body portion passing through the wall passage and an integral head portion bearin against one side of the wall, the other end 0 the member being externally threaded, and a collar or nut threaded internally screwed on said thrhaded part of the member and bearing a ainst the other side of the Wall, said mem er being threaded for the pipe connection and the portion of the head adjacent the wall being calked sufiicien'tly to make a ti ht joint between the memher and wall and firmly secure the member in place, thereby preventing rotation of the member when the pipe and member are connected and disconnected. I

BENJAMIN v D. COPPAGE. 

